Mark Zacharias wrote:



Don't ignore the possibility of power supply related issues.Look to see if
any power supply capacitors - mostly on the secondary side of the SMPS
transformer - may have puffed up (vented) tops. This is pretty common the
past few years.

Mark Z.

Hi Mark
good point - and I've encountered that problem on PC motherboards and
routers ... but I can see no evidence of cap. failure here.

I've also checked the composite output and that seems to be exhibiting the
same symptom.

J^n